package com.woniuxy05;

abstract class Aaa{

    public void test01(){

    }

    public abstract void test02();
    public abstract void test03();
}

class Bbb extends Aaa{
    @Override
    public void test02() {

    }
    @Override
    public void test03() {

    }
}

abstract class Ccc extends Aaa{

}

abstract class Xxx{

}

abstract class Yyy{
    public abstract void abc();
}

public class Test01 {

    public static void main(String[] args) {
//        Aaa aaa=new Aaa();
    }
}
